291 Dossier(s) trouvé(s) à l’emplacement "Région désignée des Gwich'in" (les projets pluriannuels sont regroupés):
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2006 - 2007 Biophysical and Reconnaissance Studies in the Gwich’in Settlement Area
chercheur principal:
Année(s) de permis: 2007
Résumé: Several biophysical and engineering studies on the feasibility of a pipeline in the Mackenzie Valley have been conducted, and will continue in 2007. Local knowledge, scientific research, and existing technical information are being used to develop a knowledge base for environmental protection plans, engineering design and regulatory processes. Route and site reconnaissance will be by helicopte...


Evaluation of extreme events (ice jams) and deep scour holes on Mackenzie Delta Channels
chercheur principal:
Année(s) de permis: 2008 2007 2006 2005 2004
Résumé: The objectives of this study are to quantify the frequency and magnitude of ice jams in the Mackenzie River Delta, including the hydroclimatic conditions controlling their occurrence and associated floods, develop a hydraulic model of it, and investigate the importance of deep scour holes in the Mackenzie River. This study is an expansion of previous research conducted in 2004. Ice jamming has ...


Variation of near-surface ground temperatures in spruce forests, Mackenzie Delta, Northwest Territories
chercheur principal:
Année(s) de permis: 2007 2006
Résumé: An understanding of near-surface ground temperatures will provide a baseline to assess change and identify sensitive areas. The objective of this project is to determine the variation of near-surface ground temperatures within the Mackenzie Delta. Investigations have identified four spruce forest communities in the delta based on composition: spruce-alder-bearberry, spruce-feathermoss, spruce-crow...


Travaillant Lake Fish Population Assessment 2006
chercheur principal:
Année(s) de permis: 2007 2006
Résumé: The Travaillant Lake system is one of the most culturally and traditionally important areas within the Gwich'in Settlement Area (GSA). In recent years, in light of proposed industrial development and exploration that may threaten the aquatic environment within this system, Travaillant Lake has become a focus of fisheries-related studies that have attempted to collect information on biological char...


Regional Terrain Hazards Mapping
chercheur principal:
Année(s) de permis: 2006 2005
Résumé: The goal of this project is to compile updated baseline information/knowledge on the types, regional distribution, and controls (e.g. forests fires, climate change) of landslides. The main objectives of the field reconnaissance at landslide sites are six-fold: 1) to validate previous data collected through air photo interpretation and remote sensing techniques; 2) to carry out detailed mapping at ...


Enhancement of Permafrost Monitoring Network and Collection of Baseline Terrain Information in the Mackenzie Valley Corridor - Gwich'in Settlement Area
chercheur principal:
Année(s) de permis: 2006
Résumé: Gaps exist in the Mackenzie monitoring network in the permafrost zones north of Norman Wells, the Mackenzie Delta region and shorelines and coastlines. Enhancement of the network is essential to provide baseline information for developments such as pipelines, highways and power lines, and to assess the impact of such development and/or climate change on the environment. In this project, temperatur...


Determination of near-surface permafrost extent in the Mackenzie Delta
chercheur principal:
Année(s) de permis: 2006 2005
Résumé: The climate and numerous field reports indicate that permafrost should be continuous in the Mackenzie Delta. However, the most recent permafrost map in the Atlas of Canada classifies the delta as having discontinuous permafrost. Yet, no extensive fieldwork covering the entire delta has ever been realized. Unfrozen conditions beneath the ground, near shifting channels, have been recognized by vario...


Autecology of Green Alder in the Mackenzie Delta
chercheur principal:
Année(s) de permis: 2006 2005 2004
Résumé: The objective of this research is to explore the influence of temperature and disturbance on green alder by comparing alder characteristics on sites with different average temperatures and disturbance histories. Understanding of factors that influence alder populations today will assist in predicting the likely consequences of rising temperatures and increased disturbance on tall shrubs. A min...


Structure of black spruce forests on continuous permafrost
chercheur principal:
Année(s) de permis: 2005
Résumé: The researchers will measure black spruce forests along the Dempster Highway. They will determine if the trees can only grow to a certain limit that cannot be surpassed, regardless of the number of trees per hectare. A limit of this kind was recently discovered in Siberia. The number of trees per hectare and above-ground biomass will be estimated in numerous black spruce stands. A method ...


2005 Terrestrial Studies in the Gwich’in Settlement Area
chercheur principal:
Année(s) de permis: 2005 2004 2003 2002
Résumé: The 2005 terrestrial studies include vegetation mapping, rare plant surveys, rare plant mitigation planning, timber cruising, and landform, soil and permafrost investigations. All of the studies will be conducted by three- or four-person crews supported by helicopter. A local assistant will be included as part of each terrestrial survey team to assist in observing and recording data taken at surve...


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